JPH052452Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" This invention allows the cap to be fitted onto the outer surface of the mouth and neck of the container body by pushing down from above the mouth and neck, and when the cap is rotated relative to the container body from the fitted state. , the lower end of the outer circumferential wall of the cap rides on the ridgeline of the pyramid-shaped container shoulder, and at this time, the protrusions provided on the outer surface of the neck and the inner surface of the inner circumferential wall of the cap that fit on the outer surface of the neck and neck are formed. This relates to a container that is provided in such a way that the cap can be removed as soon as the engagement of the strips is disengaged.

"Prior Art" As a conventional container, for example, a container disclosed in Japanese Utility Model Application Publication No. 159545/1983 is known.

The above-mentioned container has a circular mouth and neck that stands up from the upper end of a square body through a square pyramidal shoulder, a container body that has an engaging protrusion around the outer surface of the middle part of the mouth and neck, and an upper end surface of the mouth and neck. A cap body having a circular inner circumferential wall fitted to the outer surface of the mouth and neck from the lower surface of the rectangular top wall to be closed, and a rectangular outer circumferential wall hanging from the outer periphery of the top wall, and a rectangular shape fitted to the lower end of the outer circumferential wall. an auxiliary member that stands up a circular cylinder from the frame via an inward flange, brings the upper end of the circular cylinder into contact with the lower end surface of the circular inner circumferential wall, and forms a groove at the upper end of the upper end of the circular cylinder at a position facing left and right; , the tip of the engagement protrusion protruding from the inner surface of the short diameter part of the elliptical elastic ring fitted onto the outer surface of the circular cylinder is projected inward through the groove and onto the lower surface of the engagement protrusion of the neck and mouth part. When the cap formed by the cap main body, the auxiliary member, and the elastic ring member is rotated relative to the container body, the lower surface of the rectangular frame rides on the ridgeline of the shoulder. By raising the cap, the cap is pushed up, and at this time, the elliptical elastic ring is elastically deformed, so that the engaging protrusion passes over the engaging protrusion on the neck of the container body, and the cap is removed, and the cap is then pushed down from the removed state. As a result, similarly to the above, the engagement protrusion of the elastic ring-shaped member is provided so as to go over the engagement protrusion of the mouth and neck part and engage with the lower surface thereof.

``Problem to be solved by the invention'' The cap of the conventional container described above has a small contact surface because the elliptical elastic ring is fitted onto the outer surface of the circular cylinder of the auxiliary member with only the inner wall surface of its short diameter part touching. This tends to make the fitting unstable, and the engagement protrusion that engages with the lower surface of the engagement protrusion on the neck of the container body protrudes from the short diameter part of the elliptical elastic ring. The number of parts cannot be increased to three or more, and as a result, the engagement of the cap fitted to the neck of the container body becomes weak, making it easy for the cap to come off. Since the distance between the side walls of the rectangular outer circumferential wall of the main body must be large, the difference in diameter between the circular inner circumferential wall of the auxiliary member cylinder, that is, the cap main body, and the inscribed circle of the rectangular outer circumferential wall becomes large. It has a drawback that it is not suitable for caps of containers where the difference in diameter between the inscribed circle of the container body and the mouth and neck is small.

The main purpose of the present invention is to eliminate the above-mentioned drawbacks by forming the portion corresponding to the engagement protrusion into a small elastic ring-shaped portion.

"Means for Solving the Problems" A container body 1 in which a cylindrical neck part 9 having an engaging protrusion 8 on the outer surface stands up from the upper end of a square body part 6 via a pyramidal shoulder part 7; It consists of a cap 2 with a peripheral wall fitted onto the outer surface of the mouth and neck, and the cap 2
A cylindrical peripheral wall hangs down from the outer periphery of the first top wall that closes the upper end surface of the mouth and neck part 9, and is connected to the first square peripheral wall 10 via an outward flange 11 attached to the lower end of the peripheral wall.
The inner cap 3 that hangs down, and the lower part of the second rectangular peripheral wall that hangs down from the outer periphery of the second top wall placed on the first top wall are fitted onto the outer surface of the first rectangular peripheral wall 10, and the second rectangular The lower end surface of the peripheral wall is formed by an outer cap 5 placed on the outer peripheral portion of the shoulder 7, and a plurality of vertical grooves 12 are formed at approximately equal intervals on the outer surface of the cylindrical peripheral wall of the inner cap, and the lower end of the vertical groove is formed. Through-holes 13 are formed in the inner cylindrical peripheral wall portion, and elastic small rings are inserted into the cylindrical peripheral wall from the inner surface of the ring portion fitted to the outer surface of the lower end of the cylindrical peripheral wall through the through-holes 13. An engaging ring 4 having a protruding portion 15 is provided, and the inner ring-shaped portion of the small ring-shaped portion is engaged with the lower surface of the engaging protrusion 8 of the mouth and neck portion.

``Operation'' When the cap 2 is rotated relative to the container body 1 from the fitted state of the cap shown in FIG. By riding on the cap, the cap is pushed up, and the small elastic ring-shaped portion 15 of the engagement ring 4
is elastically deformed and passes over the engagement protrusion 8 on the outer surface of the container mouth neck. Therefore, the cap 2 can be pulled out upward. When the caps are fitted together, the small elastic ring-shaped portion 15 rides over the engagement protrusion 8 and engages with its lower surface by pressing down from above.

``Example'' 1 is a container body, in which a cylindrical neck portion 9 having an engaging protrusion 8 on the outer surface is erected from the upper end of a rectangular body portion 6 via a quadrangular pyramid-shaped shoulder portion 7. Note that 20 is a cut surface of a part of the corner for design purposes.

Reference numeral 2 designates a cap fitted into the container body, which is formed by an inner cap 3 with an engagement ring 4 and an outer cap 5 fitted onto the outer surface of the inner cap.

The inner cap 3 has a cylindrical peripheral wall suspended from the outer periphery of the first top wall that closes the upper end surface of the container mouth neck 9, and a first rectangular peripheral wall 10 suspended through an outward flange 11 attached to the lower end of the peripheral wall. . The peripheral wall may extend above the outward facing flange 11. Vertical grooves 12 are bored at approximately equal intervals on the outer surface of the cylindrical peripheral wall. This groove is a guide groove for a small ring-shaped portion 15, which will be described later, and a through hole 13 is bored in the cylindrical peripheral wall portion at the lower end of the groove as an insertion hole for the small ring-shaped portion. An engaging protrusion 16 is attached to the outer surface of the first rectangular peripheral wall 10, and some of the corners serve as cut surfaces 20.
The engagement ring 4 has elastic small ring-shaped parts 15 attached to a plurality of places on a ring part fitted to the outer surface of the cylindrical peripheral wall, and by lowering the small ring-shaped parts through the vertical groove 12, The inner ring-shaped portion protrudes inward from the cylindrical peripheral wall through the through hole 13, and the protruding portion is engaged with the lower surface of the engaging protrusion 8 on the neck of the container body.

The outer cap 5 has a second rectangular peripheral wall hanging down from the outer periphery of the second top wall placed on the first top wall of the inner cap described above, and a first rectangular peripheral wall 10 fitted into the lower part of the peripheral wall. , has an engaging protrusion 17 that is engaged with the aforementioned engaging protrusion 16. The lower end of the second rectangular peripheral wall is placed on the outer periphery of the container body shoulder 7. 2nd outer cap
A presser piece 18 may be suspended from the top wall and applied to the outer surface of the engagement ring 4.

"Effect of the invention" The present invention has the above-mentioned configuration, in which the engagement ring 4 is fitted into the cylindrical circumferential wall of the inner cap 3, and the engagement ring passes from the inner surface of the engagement ring through the through hole 13 to the inside of the cylindrical circumferential wall. Since the inner ring-shaped portion of the protruding elastic small ring-shaped portion 15 is engaged with the lower surface of the engagement protrusion 8 on the neck of the container body, the engagement protrusion is not formed as in the case of the elliptical elastic ring of the conventional example described above. The number of elastic ring-shaped portions 15 to be engaged with the lower surface of the strip 8 is not limited, and the difference in diameter between the outer diameter of the cylindrical peripheral wall of the inner cap and the inscribed circle of the second rectangular peripheral wall of the outer cap 5 is smaller than the conventional example. Since the cap can be made smaller than the diameter of the container, it can be formed as a container cap with a small diameter difference between the container mouth neck and the inscribed circle of the body. Since the vertical grooves 12 are formed and the through holes 13 are formed in the cylindrical peripheral wall portion within the lower end of the vertical grooves, the engaging ring 4 can be shaped like an elastic small ring by using the vertical grooves 12 as guide grooves. It is also easy to lower the portion 15 and project the inner ring portion of the small ring portion into the cylindrical peripheral wall portion through the through hole 13.

[Brief explanation of drawings]

1A and 1B are a top view and a vertical cross-sectional view of an embodiment of the container of the present invention, with the top wall of the outer cap omitted, and FIG. 2 is an exploded perspective view of the same embodiment. 1... Container body, 2... Cap, 3... Inner cap, 4... Engagement ring, 5... Outer cap.

Claims (1)

[Scope of utility model registration request] A container body 1 in which a cylindrical neck part 9 having an engaging protrusion 8 on its outer surface stands up from the upper end of a square body part 6 via a pyramidal shoulder part 7, and a peripheral wall fitted to the outer surface of the neck part of the container body. The cap 2 consists of a
A cylindrical peripheral wall hangs down from the outer periphery of the first top wall that closes the upper end surface of the mouth and neck part 9, and is connected to the first square peripheral wall 10 via an outward flange 11 attached to the lower end of the peripheral wall.
The inner cap 3 that hangs down, and the lower part of the second rectangular peripheral wall that hangs down from the outer periphery of the second top wall placed on the first top wall are fitted onto the outer surface of the first rectangular peripheral wall 10. The lower end surface of the peripheral wall is formed by the outer cap 5 placed on the outer peripheral portion of the shoulder portion 7, and the outer surface of the cylindrical peripheral wall of the inner cap has a plurality of vertical grooves 12 at approximately equal intervals, and the lower end of the vertical groove Through-holes 13 are formed in the inner cylindrical peripheral wall portion, and elastic small rings are inserted into the cylindrical peripheral wall from the inner surface of the ring portion fitted to the outer surface of the lower end of the cylindrical peripheral wall through the through-holes 13. A container characterized in that an engaging ring 4 having a protruding portion 15 is provided, and the inner ring-shaped portion of the small ring-shaped portion is engaged with the lower surface of the engaging protrusion 8 of the mouth and neck portion.